Today
+1.27%
5 Days
+6.43%
1 Month
+4.59%
6 Months
+117.47%
Year to Date
+97.86%
1 Year
+103.36%



| Shareholders | Proportion |
|---|---|
| Graham Holdings Co | 7.42% |
| BlackRock Institutional Trust Company, N.A. | 6.89% |
| CenterBook Partners LP | 4.56% |
| Vanguard Capital Management, LLC | 4.23% |
| Shareholder Types | Proportion |
|---|---|
| Investment Advisor/Hedge Fund | 29.30% |
| Investment Advisor | 29.11% |
| Hedge Fund | 13.65% |
| Research Firm | 2.37% |
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